Cheapest return flights from Istanbul to Keflavik in October from 421€

AirHint found the following cheapest return flights from Istanbul (IST) to Keflavik (KEF) in October 2025 (see full year).

Return flights

30 Oct - 06 Nov Pegasus Airlines
31 Oct - 06 Nov Pegasus Airlines
28 Oct - 04 Nov Pegasus Airlines
25 Oct - 30 Oct Turkish Airlines
26 Oct - 28 Oct Fly One
26 Oct - 29 Oct Fly One
28 Oct - 02 Nov Pegasus Airlines
26 Oct - 02 Nov Fly One
31 Oct - 09 Nov Wizz Air
27 Oct - 30 Oct Pegasus Airlines
31 Oct - 09 Nov Icelandair direct
31 Oct - 06 Nov Icelandair direct
27 Oct - 30 Oct Icelandair direct

Also check the deals for one-way flights from Istanbul to Keflavik in October.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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